Life is short, but wisdom is eternal.

The Langlands program is a reflection of the depth and beauty of mathematical thought.

每把锁都有钥匙，每个问题都有解决方案。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

脸上有个污点，别人见了都暗自发笑，而自己还不知道，一旦有人直言相告，马上就用手拭去。如果还说：「我脸上有污点，与你有什么关系？」就不合乎人之常情了。可是当别人指出自身的缺点错误时，人们的态度为何就不是这样呢？

The opening up of new markets, foreign or domestic, and the organizational development from the craft shop and factory to such concerns as U.S. Steel illustrate the same process of industrial mutation—if I may use that biological term—that incessantly revolutionizes the economic structure from within, incessantly destroying the old one, incessantly creating a new one.